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https://issues.apache.org/jira/browse/BEAM-7310?focusedWorklogId=374617&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-374617
]
ASF GitHub Bot logged work on BEAM-7310:
----------------------------------------
Author: ASF GitHub Bot
Created on: 20/Jan/20 15:32
Start Date: 20/Jan/20 15:32
Worklog Time Spent: 10m
Work Description: iemejia commented on pull request #10563: [BEAM-7310]
Add support of Confluent Schema Registry for KafkaIO
URL: https://github.com/apache/beam/pull/10563#discussion_r368597064
##########
File path:
sdks/java/io/kafka/src/main/java/org/apache/beam/sdk/io/kafka/KafkaIO.java
##########
@@ -862,19 +958,56 @@ public void setValueDeserializer(String
valueDeserializer) {
// Infer key/value coders if not specified explicitly
CoderRegistry registry = input.getPipeline().getCoderRegistry();
- Coder<K> keyCoder =
- getKeyCoder() != null ? getKeyCoder() : inferCoder(registry,
getKeyDeserializer());
- checkArgument(
- keyCoder != null,
- "Key coder could not be inferred from key deserializer. Please
provide"
- + "key coder explicitly using withKeyDeserializerAndCoder()");
+ final String schemaRegistryURL =
+ (String)
getConsumerConfig().get(AbstractKafkaAvroSerDeConfig.SCHEMA_REGISTRY_URL_CONFIG);
- Coder<V> valueCoder =
- getValueCoder() != null ? getValueCoder() : inferCoder(registry,
getValueDeserializer());
- checkArgument(
- valueCoder != null,
- "Value coder could not be inferred from value deserializer. Please
provide"
- + "value coder explicitly using
withValueDeserializerAndCoder()");
+ // Set up key coder
+ Schema avroKeySchema = null;
+ if (schemaRegistryURL != null && getKeySchemaSubject() != null) {
+ avroKeySchema = fetchAvroSchema(schemaRegistryURL,
getKeySchemaSubject());
+ checkArgument(avroKeySchema != null, "Avro key schema can't be null");
+ }
+
+ Coder<K> keyCoder;
+ if (avroKeySchema != null) {
+ keyCoder = (Coder<K>) AvroCoder.of(avroKeySchema);
+ checkArgument(
Review comment:
but probably that check should be `checkState` per
https://github.com/google/guava/wiki/PreconditionsExplained
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Issue Time Tracking
-------------------
Worklog Id: (was: 374617)
Time Spent: 2h 50m (was: 2h 40m)
> Confluent Schema Registry support in KafkaIO
> --------------------------------------------
>
> Key: BEAM-7310
> URL: https://issues.apache.org/jira/browse/BEAM-7310
> Project: Beam
> Issue Type: Improvement
> Components: io-java-kafka
> Affects Versions: 2.12.0
> Reporter: Yohei Shimomae
> Assignee: Alexey Romanenko
> Priority: Minor
> Time Spent: 2h 50m
> Remaining Estimate: 0h
>
> Confluent Schema Registry is useful when we manage Avro Schema but KafkaIO
> does not support Confluent Schema Registry as discussed here.
> https://stackoverflow.com/questions/56035121/unable-to-connect-from-dataflow-job-to-schema-registry-when-schema-registry-requ
> https://lists.apache.org/thread.html/7695fccddebd08733b80ae1e43b79b636b63cd5fe583a2bdeecda6c4@%3Cuser.beam.apache.org%3E
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